The table below shows the fossils found in various layers of an undisturbed rock: Fossils In Rock Layers Layer (from top) Fossils in Layer 1 A, C 2 E 3 A, D, F 4 B 5 F, C 6 D, B Which is most likely an index fossil? A B D E

Which of the following questions must be asked about the use of resources in an economic system a. what allocation will provide the fastest growth b. what is the most secure allocation c. what is the fairest allocation d. what is the most effective allocation